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How do I get the last inserted ID of a MySQL table in PHP?
...n the server on a per-connection basis. This means that the value returned by the function to a given client is the first AUTO_INCREMENT value generated for most recent statement affecting an AUTO_INCREMENT column by that client. This is the reason you should not use select MAX(ID)
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What are the differences between concepts and template constraints?
...y: For x and y of type T: if x == y, a new object of the same type created by copy construction T{x} == y and still x == y (that is, it is non-destructive).
Concepts
Now concepts are very easy to define; they are simply the combination of constraints and axioms. They provide an abstract requireme...
How to upgrade PostgreSQL from version 9.6 to version 10.1 without losing data?
I'm using the PostgreSQL database for my Ruby on Rails application (on Mac OS X 10.9).
15 Answers
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How do I intercept a method call in C#?
...rder to do that you have two main options
Inherit your class from MarshalByRefObject or ContextBoundObject and define an attribute which inherits from IMessageSink. This article has a good example. You have to consider nontheless that using a MarshalByRefObject the performance will go down like he...
How do I write a correct micro-benchmark in Java?
...to denote the non-initial entry point, for example: Trouble$1::run @ 2 (41 bytes). Prefer server to client, and regular to OSR, if you are after best performance.
Rule 4: Be aware of initialization effects. Do not print for the first time during your timing phase, since printing loads and initializ...
What does this gdb output mean?
...lated / connected to the issue you have posted above.
This issue is filed by Apple under Bug ID# 10555404. I did file a report myself which has finally been identified as a dupe of the mentioned bug id.
The issue currently persists up until and including Xcode Version 4.4.1 (4F1003), iOS SDK 5.1.
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How do I get into a non-password protected Java keystore or change the password?
...uire a password, but your keystore definitely has a password, as indicated by:
In order to verify its integrity, you must provide your keystore password.
Java's default cacerts password is "changeit", unless you're on a Mac, where it's "changeme" up to a certain point. Apparently as of Mountai...
mongoDB/mongoose: unique if not null
...ior of ensuring unique values but allowing multiple docs without the field by setting the sparse option to true when defining the index. As in:
email : {type: String, trim: true, index: true, unique: true, sparse: true}
Or in the shell:
db.users.ensureIndex({email: 1}, {unique: true, sparse: tr...
Which is best way to define constants in android, either static class, interface or xml resource?
... project significantly.
static final constants are compiled into the java bytecode; project resources are compiled into a binary format within the apk. Accessing either is extremely efficient... if there is a difference between the two, it is trivial at most.
There isn't a set rule on how you shou...
Add Bootstrap Glyphicon to Input Box
...o do this yourself. As beard of prey points out, you can do this with CSS by absolutely positioning the icon inside of the input element. Then add padding to either side so the text doesn't overlap with the icon.
So for the following HTML:
<div class="inner-addon left-addon">
<i cla...